Steel debkick



J. F. HILLIARD & F. JONES.

STEEL DERRICK.

APPLICATION FILED APR.5. 191s.

1,1 95,015; Patented Aug. 15,1916.

JESSE F. HILLIARD AND FAYETTE JONES, or iirxnn, PnNNsYLvANIA.

STEEL DERRICK.

Specification of Letters Patent.

Patented Aug. 15, 1916.

' Application filed April 5, 1916. Serial No. 89,149.

To all wkpm'z't may concern:

Be it known that we, Jnssn F. HILLIARD :"and FAYETTE JoNns, citizens ofthe United States, residing at Aiken, in the county of McKean and Stateof Pennsylvania, have invented new and useful Improvements in SteelDerricks, of which the following is a specification.

This invention relates to an improved construction or derrick and hasfor its primary object to provide means for more effectively bracing thedifferent elements and substantially supporting the pulleys.

An object of the invention is the substantial manner of securingtogether the upper ends of the uprights aiid 'supporting a plutality ofpulleys. H

With this and other objects in view, the invention consists. inconstruction, com-' bination and armrrgemeht of parts as will behereinafter more fully described, illustrated in the accompanyingdrawing and pointed out in the claims hereto appended.

In the drawing :Figure 1 is a side eleva tion of the derrick.

" Fig. 3 is a detail enlarged elevation of the upper portion of thederrick. Fig. 4: is an enlarged side elevation of the upper portion ofthe derrick. Fig. 5 is a perspective view of one of the bearingsupports.

Referring to the drawing, the numeral 1 designates a plurality ofuprights of any suitable cross sectional formation depend ing entirelyupon the service required of the derrick. These uprights 1 are rigidlyconnected together by means of the transversely arranged braces 2 andangularly.ar ranged struts 3, the latter being connected in pairs at anintermediate point by means of the clips 4:. The uprights are mountedupon any suitable form of base such as illus trated at 5. The uprightsconverge toward each other in an upward direction so that the upper endportions 6 are disposed in close proximity to each other. In this particular instance the uprights are made of tubular material and seated inthe upper end Fig. 2 is a vertical sectional View on the line 22 of'Fig.1.

of the uprights is the extension 7 of a bearing support 8. This supportis recessed as illustrated at 10 and snugly fitting the recess is theextension 11 formed integral with the bearing 12; This bearing 12 isformed with a depression 13 in which rotates one end of an axle 14 thatcarries a pulley 15. Passing through both the bearing and the supportare the parallel limbs of a U bolt 16 that passes over the axle andholds the same seated in the depression. Arranged directly below thepulley 15 and contacting with the adjacent surfaces'ofthe uprights is ablock 17 through which and the uprights pass bolts 18 vertically spacedfrom each other. For exposing the center portion of the lowermost boltwe cut away a. portion of the block as illustrated at 19 and connectedto the exposed portion of the bolt is a second pulley 20.

From the foregoing description taken in connection with the accompanyingdrawing it should be apparent that we provide a de vice which isadmirably adapted for the purpose for which it is intended, that thedevice is simple, durable, and eliicient of construc tion and that thedevice may be manufactured and sold at a comparatively low cost.

WVhat we claim is:

l. A derrick comprising hollow uprights, supports having extensionsdetachably mounted in the uprights, bearings detachably mounted in thesupports, a pulley mounted in the bearings, and a pulley supportingblock mounted between the uprights directly below said first pulley.

2. A derrick comprising hollow uprights, supports detachably mountedupon the upper ends of said uprights, bearing blocks seated within saidsupports, a pulley including an axle mounted on the bearing blocks,

and U bolts passing around the axle of the pulley and through saidblocks and supports.

In testimony whereof we aflix our signatures. 1

JESSE F. HILLIARD. FAYETTE JONES.

